AD & Service Bulletins

SUMMARY: The FAA are superseding Airworthiness Directive (AD) 96-12-12, which applies to certain Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, and PA-31-350 airplanes. AD 96-12-12 requires a one-time inspection of the bulkhead assembly at fuselage station (FS) 317.75 for cracks and the installation of one of two reinforcement kits determined by whether cracks were found during…

Events Leading to This Priority Letter AD This priority letter airworthiness directive (AD) is prompted by recent operator reports and the manufacturer’s report of several cracked filter housings on RAPCO, Inc. in-line pressure filters produced from lot numbers 05597, 07797, and 12597 and that have part numbers (P/N) RA-1J4-4, RA-1J4-6, and RA-1J4-7. The cracked filter…